References fail differently from a malformed CSV
A file can parse perfectly while still naming a deleted card, obsolete token, or mistyped component. This checker builds the valid master-ID set, flags duplicate master keys, and reports every missing target at its source row.
One cell can contain several dependencies
Choose the separator used by your project. Empty reference cells are warnings because the tool cannot know whether the relationship is optional.
Related checks
Use the Expansion Compatibility Validator when dependencies cross a base game and expansion.